大话设计模式-外观模式

 1 // facade.cpp : 定义控制台应用程序的入口点。
 2 //
 3 
 4 #include "stdafx.h"
 5 #include <iostream>
 6 
 7 using namespace std;
 8 
 9 class systemone{
10 
11 public:
12     void method1(){
13         cout << "systemone : method1" << endl;
14     }
15 };
16 
17 class systemtwo{
18 public:
19     void method2(){
20         cout << "systemtwo : method2" << endl;
21     }
22 };
23 class systemthree{
24 public:
25     void method3(){
26         cout << "systemthree : method3" << endl;
27     }
28 };
29 class systemfour{
30 public:
31     void method4(){
32         cout << "systemfour : method4" << endl;
33     }
34 };
35 
36 class Facade{
37 
38 public:
39     void Fund(){
40         sysone = new systemone();
41         systwo = new systemtwo();
42         systhree = new systemthree();
43         systwo = new systemtwo();
44         sysfour = new systemfour();
45     }
46 
47     void Method1(){
48 
49         sysone->method1();
50         systwo->method2();
51         sysfour->method4();
52     }
53 
54     void Method2(){
55         systwo->method2();
56         systhree->method3();
57         sysfour->method4();
58     }
59 private:
60     systemone *sysone;
61     systemtwo *systwo;
62     systemthree *systhree;
63     systemfour *sysfour;
64 };
65 int _tmain(int argc, _TCHAR* argv[])
66 {
67     Facade *f = new Facade();
68     f->Method1();
69     f->Method2();
70     return 0;
71 }